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TPS659113A2 / Abnormal output when changing register setting

Other Parts Discussed in Thread: TMS320DM8148

Hi,

Now my customer is evaluating TPS659113A2 with TMS320DM8148 on their test board, but then they found abnormal behavior. When they change the register value to change output voltage, TPS659113A2 regulate larger output than setting. This can be seen only one board, and it can’t be seen every time, can be seen infrequently on the same board. Please give your comment for following question.

Have you seen such behavior?

Can you please give your comment about possible reason?

TPS659113A2 Abnormal output when changing register setting.pdf

Best Regards,

Sonoki / Japan Disty